Sonic the Hedgehog: Vence Os Badniks

So, I've created an account here because I wanted to share some info about this. I'm portuguese and, while I never read the book in question, "Sonic: Vence os Badniks", I did read the second volume, which I believe doesn't even have a page here: "Sonic: Ataque em Tornado". I read it when I was around 5 or 6 years old, I believe. I'm not sure which issues were there, but I do remember seeing Sonic talking to the Omniviewer, possibly to share his origin story (even though I don't exactly remember reading anything of such), and I especially remember the last issue in the collection, where Sonic fought the Megatox, the thing made out of Mega Mack (which, at the time, I thought it was grape juice. In a sewer. I wasn't all that clever back then). But here's the thing. The only portuguese site that mentions both os these books, and mind you, they are the ONLY books of that collection (guess they didn't sell well), it says the first one has issues 1-4,amd the second has the issues 5-8. Megatox only appears in issue 10. So, I don't know what happened. Either the books actually have 5 issues, or they actually skip issues. They must be the same books though as, even though I don't remember the cover of the book I read, I saw the advertisement for the first one, and the cover is exactly the same. I also remember the book being in portuguese, and it makes sense, as I found it in my kindergarten's small library, and at the time all leisure books were most likely in portuguese, our native language. So, if anyone can help me figure out more stuff about this book, one of my most impactful interactions with Sonic when I was a kid, I will gladly accept the assistance!